How old were you when you did your first fresh?I'm very lucky that I had 1 blast that made it. Because the rest of my embryos didn't make the cut.
Besides luck, age and prep does make a difference too. The younger you are, the easier it'll be, both for the guy and the girl. To anyone who'd listen, I'd say, don't wait, just go for it already. And when you do, let go of other concerns like work etc. If you are going to blow $15k - $20k on this, at least give it your best. I regretted not taking leave and stressing myself up like crazy the first time. So this time, I just took leave as needed.
Prep wise, this time my doc put me on Coq10 to improve my eggs quality due to my age. DH made sure he was rested and refrained from drinking. I ate 4 eggs (just the whites) every day until I wanted to puke just from seeing eggs. It seemed to have helped, since 3 blasts made it to freezing (as opposed to none the last time).
But the real test is whether it sticks, right? That, I can only tell you after my 2WW!